but that could soon change. because of antitrust cablevision filed against viacom its main cable contact. >> cablevision doesn't want to pay for networks that are very low rated. when viacom does a deal with cablevision, it says you can either get all of our networks together, all bundled up in one, or you get none of them. >> reporter: the suit a little viacom is forcing cablevision to carry and pay for 14 lesser known channels in order to carry must haves like mtv, comedy central and nickelodeon. cablevision says this practice violates antitrust laws and is therefore illegal. >> what does cablevision have to prove in order to win this case? >> that viacom's bundling practices cause either higher rates consumers have to pay for their subscriptions or the inability to access innovative quality programming. >> reporter: experts say one of the main drivers behind the case is the growing popularity of streaming services like apple tv and netflix, "forms of a la carte tv that could soon become the norm. >> cablevisi